Sir John de Courcy and his sister’s husband, Sir Amoricus Tristram, arrived at Howth in 1177. Their companionship in arms is said to have been the outcome of a compact to share each other’s fortunes made in the Church of St. Mary at Rouen. Upon the arrival of the ship at Howth, De Courcy, being ill, remained on board, while Sir Amoricus took command of their forces in the first engagement with the Danes, who fiercely opposed their landing. After a great battle, in which Sir Amoricus lost seven blood relations, the enemy were completely defeated at the bridge of the Evora, and the lands of Howth were granted to the victor as a reward of prowess. He then accompanied Sir John de Courcy to Down, where he also gained possessions and did great deeds of valour. A story is told that after the first battle in the north Sir Amoricus was found leaning on his shield under a hedge, bleeding from three large wounds, and having sustained himself by eating the wild roses and honeysuckle which grew within his reach. His life was despaired of for nine days, but he eventually recovered, and lived to die heroically among a group of outnumbered infantry, having slain his horse so that he could not save himself by flight. The St. Laurence coat of arms is a shield with cross swords and roses in a bloody field, which may have originated from the wild flowers Sir Amoricus gathered. An early chronicler says of him that he might “be chosen from amongst a thousand knights for beauty and heroic courage, as well as for humility and courtesy to his inferiors, yielding to none but in the way of gentleness.” After his death his sons gradually lost his northern possessions, and King John confirmed the grant of the lands of Howth to the third baron by charter. It may have been at this time that the family name was changed from Tristram to St. Laurence. There seems to be no historical evidence for the tradition that the name was altered to commemorate a victory gained upon St. Laurence’s Day. In 1575, as Grace O’Mailley was returning from her famous visit to Queen Elizabeth she landed at Howth, but found the castle gates closed, the reason assigned being that it was the dinner hour. Shocked at such want of Irish hospitality she seized the young heir, who was playing on the strand, and carried him off to her castle in Mayo. She refused to restore him until she received a promise that the gates of Howth Castle should never again be closed at dinner hour. This child was Nicholas, afterwards twenty-first baron. A picture at the castle is supposed to represent the incident. Lord Mountjoy, as Lord Deputy, and Sir George Carew, as Lord President of Munster, landed at Howth in 1599, and spent a night at the castle before proceeding to Dublin.